Package-sealing machine



Aug. 7, 1928.

c. w. BOLGIANO PACKAGE SEALING MACHINE Fi 1ed Sept. 20, 1926 :5 sheets-she p 1 INVENTOR. 0 C/ztzrZasWBo no,

ATTORNEY Aug. 7, 1928.

C. W BOLGIANO PACKAGE SEALING MACHINE 3 sneaks-sheet 2 Filed Sept. 20, 1926 Aug. 7, 1928; 1,680,009

c.. w. BOLGIANO PACKAGE SEALING MACHINE Filed Sept. 20, 1926 a Sheets-Sheet 3 29 ill lillll 45 I 'HIIIHIHHHIIIIII IS I 4-3 J6 5a 3a INVENTOR.

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\ IEACEAGE-SEALINH HAGYHINE.

i lpplioatlenflled September 20, rest. terlel l lo, 3136,6117.

This invention relates to certain new and nsefnl improvements in the construction end operation of package sealin machines.

The invention is concerns more particularlpk, with the provision of an entometic nine ine cepeble of facilitating the sealing et envelopes aind simiilar tconiteiners got the t e coon step 0 e or pac 'eging Si n end like chmmodit ies,

object oi, the invention is to provide e conipect type ct entometic sealing machine boring the verions elements thereof including the prime mover mounted or on e common perteble snpport cepeble oi eing reed ily trenslerred from plece to piece es cirennostces mey renire. other object 11 the invention is to proride it peclrege sealing machine bovin provision :tor eetoneeticelly, epplying edhesive to the open dep oi e peclrege, entometicelly llelding the hep down upon the body oil the nclrege subsequent to the applicetion oi ed 'iesive end tor epplying heat end pressure to the lelded hop to cense the letter to edhere firmly to the body ol the peclrege,

I ll, lnrther object oi the invention is to provide e novel type of peclinge conveyor which is edjnsteble to ecconnrnodete peelies oi varying thicknesses.

it. still :tnrther object of the invention is to provide e novel combinetion oil edhesive epplier end conveyor in which the ed heeive ep her is operated by a movable elennent ell t e conveyor,

ll. still inrther object of the invention is to provide e novel combination of elements in which or single power driven conveyor serves to deliver the packa s to the adheisive epplier, folder, and eat and pressnre epplying means in the ordernamed besides serving to effect positive operation ot the edhesive npplier.

@ther objects and advantages of the invention as well as the details of construction, combinetion and arrangement of. parts cherecterizing the embodiment herein disclosed will be more readily apparent from the iollowing detailed descriptlon taken in connection with the accompanying drawings in which:

Figure l is e top plen view of the corn plete mechine,

l ignre h is e front elevetionel view ot the mechine with the edhesive epplier eppeering in perspective,

Figure 3 is e verticel sectioned view through the tonic oi the edhesive epplier, certein shetts end other opereting elements being shown in elevetion,

ltignre d is e tregmentery view in side elevetion ot the conveyor, lolder end heet end pressure epplying meens.

lhigore h is e deteiled view portly in sec" tion and pertly in plen ol en ed jnsting device tor re nleting the conveyor to eccommodete pee reges ol verying width.- end,

'hlgnre it is etrensverse sectionel view tehen elong the line 66 oi l ignre l.

'll'he invention, es herein described in de tell, consists out on edhesive epplier "lor epplying edhesive to the open l'lep of e paclr ege, e tolder tor tolding the llep down upon the body'ol the eclrege subsequent to the epplicetion oi hesive, e pressure epplier tor ressing the tolded flop lirmly egeinst the ody oi the peclree'e, e heet epplier lor applying heat to the tolded tlep precticelly simnltaneonsly with the epplicetion oi pres sure end it conveyor serving to deliver the peclreges to the etoreseid elements and to otherwise cooperete therewith.

For convenience of description it is deemed expedient to describe the mein. ele ments of the complete combination in the order oi? their operetion beginning with the conveyor.

The conveyor,

by bolts 9 or equivalent tastenings, to the top 10 of a portable table having the usual arrangement of supporting legs. The drive belt travels, in contact with the wheel, from point A to point B (see Figure 1) and is driven to move in the direction indicated til till

by the arrow. From point B the belt passesvertical pulley 12. As it leaves the last mentioned pulley the belt passes downwardly through a slot 13 and around the underside of a drive pulley 14 fixed to a shaft 15 journalled between spaced standard 16 depending from the underside of the table top 10. From drive pulley 14 the belt is carried upwardly over a tension pulley 16' carried at the up er end of a swinging hanger 17 having its ower end pivoted upon shaft 15. At an intermediate point hanger 17 is connected to standards 16 by a spring 18 which causes pulle 16 to maintain pro er tension upon the elt. From the tension pulley 16' the belt passes upwardly around a further guide pulley 19 and through a second slot 20 (see Figure 1) formed in the table top 10. From the slot 20 the belt passes over a vertical pulley 21 and forwardly across the table top to a horizontal pulley 22 corresponding to the pulley 11 and located adjacent the aforementioned point A.

In the operation of the conveyor itwill be understood that the packages are interposed between the belt and the wheel at the point A and are caused to travel with and between these elements to the point B. The conve or is'adaptable to packages of varying thicknesses by regulating the tension in that portion of the belt traveling around the wheel 5 and, to this end, the aforesaid pulley 22 is fixed to a freely rotatable and laterally movable shaft 23 having its lower end journalled in a plate 24 having one end pivoted as at 25 to the table top 10. At its other end the plate is provided with a de ending flange 25 through which is threaded an adjusting screw 26 having its terminal portions mounted to rotate in the flanges 27 of a plate 28 suitably secured to the table, Any suitable expedient may be resorted to for holding the adjusting screw against longitudinal movement with reference to its supporting flanges such as the arrangement indicated M29 in Figure 5. It is thus apparent that as the screw is operated the plate 24 together with the shaft 23 and pulley 22 will be shifted to or from thewheel 5 thus varying the tension in that portion of the belt passing around the wheel and adjusting the conveyor to accommodate packages of varying thickness.

1 Adjacent to the pointA a suitable platform 30 is mounted upon which the packages are placed in upright position preparatory to being moved into contact with the wheel and belt at the said point A. Vertical adjustment of the platform to suit different conditions is provided for by a slot and pinconnection 31 as shown to advantage in Figure 2.

The shaft 15, which carries the belt drive I with any suitable form of control and, as

will be well understood, the relative ratio of the sheave 32 and 33 will depend upon the speed found suitable for the conveyor.

The adhesive applier.

As each package is grip by the conveyor at the point A adhesive is applied to the open flap of the package from the rim of a rolling contact device or wheel 34 which is mounted upon the upper end of a shaft 35 journalled in bearings 36 (see Figure 3) plier. Between the bearin s 36 shaft 35 is equipped with a fixed pu ey 38 connected by belt 39 to a pulley 40 on the shaft 23 which carries the drive belt adjusting pulley 22. From this description it is apparent that the rolling contact device or wheel 34 is operated directly by the conveyor belt 6. Immediately below wheel 34 shaft 35 is equipped with a pinion 41 meshing with a pinion 42 fixed to one end of a shaft 43 passm through the side walls of the aforesaid ad esive tank 47. Fixed to shaft 43, within said tank, is a vertical disc 44 serving to transfer adhesive from the tank to the rim of wheel 34. Through the medium of pinions 41 and 42 disc 44 is driven in an anti-clockwise direction as viewed from the right in Figure 3 and surplus adhesive carried upwardly by the disc is caused to return to the tank by a scraper 45 fixed to the upper edge of the tank and havin portions extending upon opposite sides 0 the disc. In order to prevent dripping of surplus adhesive supplied to the wheel 34 I prefer to mount within the tank 37 a brush 46 which engages the lower outer edge ortion of wheel 34 and causes surplus molsture to drip from the wheel into the tank.

The folder.

From the adhesive applier above described each package is carried by the conveyor to a folder 48 which functions to fold the flap down upon the body of the package. This folder consists of a metal plate made U-shape for the greater portion of its length to straddle the rim of wheel 5. At the receiving end of the folder the outer side and bight portion of the plate are shaped in the peculiar manner indicated at 49 in Figure 4 so that the folding of the flap is accomplished in a gradual manner as is common with folding devices of this character. The folder is supported in operative position by suitable standards 50 having their upper ends suitably fastened to the folder and their lower ends anchored to the table top 10.

carried by the tank 37 of the adhesive apl ll panacea ffte press-are and heat applying race-as,

lilrom the folder d8 each package is delivered to the pressure and heat applying means which consists of a curved and relatively narrow pressure strip 52 passing around the Wheel 5'from point C to point D vvith the terminals of the strip flared out- Wardly from the Wheel. hastened to the outer side of this pressure strip are a pair of spaced electric heating plates 53 having terminals 5d to which the conductors'55 are connected as shown in Figure 1 or in any other suitable manner. and heating plates are secured to and supported. by a plurality of standards 56 having their lower ends hinged to the table top as indicated at 57. Pressure springs 58 bearby hold the pressure strip in yielding en-' gagement with the Wheel 5. in practice the lift till

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flap-closed portions of the packages are caused to travel between the strip 52 and the Wheel whereby the flaps are pressed firmly to the bodies of the packages While the heat radiating from plates 53 serves to dry the applied adhesive, The packages are automatically released from the conveyor at or about the point lland are permitted to drop into any suitable receiver provided for this purpose. a

lit is thought that the complete operation of the machine will be clear from the foregoing description and it will he understood that various changes in the construction, combination and arrangement of the various elements may he resorted to Within the scope of the appended claims Without departing from the spirit of the invention W hat l claim:

it. it package scaling machine comprising means for applying adhesive to the open dap of a package, means for folding the flap dovvn upon the body of the package subseopuent to the application of adhesive and a pivotally mounted spring pressed hand for applying pressure to the folded flap to cause the flap to adhere firmly to the body of the package.

2. A package sealing machine comprising means for applying adhesive to the open flap of a package, means for folding the flap down upon the body of the package subsequent to the application of adhesive and an electrically heated spring pressed band an ranged to apply heat and pressure to the folded flap.

3. A package sealing machine comprising an adhesive applier for apply ng adhesive to the open flap of a package, a folder for fold- ,ing the flap down upon the body of the package subsequent to the application of adhesive, an automatic conveyor functioning to support the packages in upright posihon The pressure strip and to deliver said packages first to the ad hesive applier and then. to the folder, a pro sure applying hand arranged to engage the flaps of the packages subsequent to the fold ing operation and electrically heated plates carried by said band, i

4. A package sealing machine comprising a conveyor serving'to grip and support the packages and to cause the same to travel in a predetermined path While maintaining sai packages in upright position, an ad hesive applier to which the packages are initially delivered by the conveyor whereby adhesive is applied to the 0 en flap of the packages, a folder to Which tic packages are carried by the conveyor subsequent to the application of adhesive, said folder serving to fold the flaps down upon the body of the packages, a pivotaily mounted spring pressed'prcssure applying band to which the tlaps are delivered by the conveyor after the folding operation, and means for heating said hand,

5.. A package scaling machine comprising a conveyor including a rotatably mounted Wheel and a drive belt trained around a ortion of said Wheel, said Wheel and belt hcing adapted to receive and carry the packages thcrebetvvcen, means for applying adhesive to the open flaps of said packages and a folder including a ill-shaped blade straddling one rirn edge of the Wheel with the entrance end of the folder shaped to effect a gradual dovvn turning of the flap as each package passes therethrough,

ti. lln a package sealing machine, the pro-- vision-of means for applying pressure to the tlaps of the packages subsequent to the adhesive coating and folding of said flaps, said means comprising a pressure applying hand beneath which the closed flaps of the pack ages are caused to travel, a plurality of hingedly mounted standards carrying said hand and pressure applying springs engaging said standards and serving to press the band tovvard the packages.

f. A package closing and sealing machine comprising a relatively large rotatably mounted Wheel, an endless belt arranged to travel in contact With a substantial portion of the periphery of said Wheel and forming therewith a package conveyor, the upper edge of said belt being located inwardly of one edge of the Wheel to enable the packages to be carried between the belt and Wheel "with the flap portions of the packages projected upwardly beyond the upper edge of the belt, an adhesive applier arranged in proximity to the initial point of contact between the Whoel and the belt so as to apply adhesive to the open flaps of the packages during the early movement thereof between the Wheel and the belt, a flap folding plate mounted in proximity to the adhesive applier and hetvveen the latter and the point dill hill

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where the bolt leaves the wheel, a curved leave the .folding' plate andmeans for repressure applyin plate extending around siliently pressing said plate toward the the wheel from t e flap folding plate to a wheel. p 10 point in proximity to where the belt leaves In testimony whereof I hereunto afiix my I the wheel and arranged above the upper signature.

edge of the belt so as to directly engage the I folded flaps of the packages as the latter I CHARLES W. BOLGIANO. 

